Avoid the PC if you can
Use one only if you have a crummy power supply or wild swings e.g in an old house or apartment wiring creating a poor power supply feed that cannot be avoided.
As already highlighted before A separate dedicated power line is the preferred way to go .... Big time.
Many high-end amps with their heavy duty power supplies and discrete circuitry don't need a PC s/t the comment above.
They only perform at the their max by a direct plug-in to the after-market hi-end audiophile grade receptacles (hospital grade at a minimum ) in a dedicated line, and completely avoiding the additional filtering effect of a PC.
Check with your local bricks and mortar dealer .... This tip was given to me by mine, and he actually came over to the house to prove it to me in a A - B shootout comparison
